c#MDI容器，与最大化的子窗体之间的3d边框效果，怎么去掉

运培指用以下配搏配代码银孝就可以去掉3d边框。

DllImport("user32.dll")]

static extern long GetWindowLong(IntPtr hWnd, int nIndex)

[DllImport("user32.dll")]

static extern long SetWindowLong(IntPtr hWnd, int nIndex, long value)

private void Form1_Load(object sender, EventArgs e)

{

foreach (Control c in this.Controls)

{

if (c is MdiClient)

{

IntPtr h = c.Handle

SetWindowLong(h, -16, GetWindowLong(h, -16) &~0x00800000L)

SetWindowLong(h, -20, GetWindowLong(h, -20) &~0x00000200L)

break

}

}

}

有一棚闹个方法是自己控制非客户区的大掘基小：

void CMainFrame::OnNcCalcSize(BOOL bCalcValidRects, NCCALCSIZE_PARAMS FAR* lpncsp)

{

void CMainFrame::OnNcCalcSize(BOOL bCalcValidRects, NCCALCSIZE_PARAMS FAR* lpncsp)

{

CFrameWnd::OnNcCalcSize(bCalcValidRects, lpncsp)

lpncsp->rgrc[0].bottom+=4

lpncsp->rgrc[0].left-=4

lpncsp->rgrc[0].right+=4

}

上链散罩面的这些数值可以用GetSystemMetrics获得以便在用户改变系统窗口边框时你的程序也能正确运行。。。

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